Waistband reaming type reamer

Abstract

The invention relates to a waistband reaming type reamer, which comprises an annular waistband, wherein the center of the waistband is fixedly connected to a drill rod through a cross rod, a plurality of reaming rods are fixedly connected between the inner wall of the waistband and the sidewall of the drill rod, the reaming rod is centrally symmetrical along the drill rod, the drill rod, the reaming rods and the cross rod are of hollow structures, a plurality of welding grooves are symmetrically formed in the inner wall of the waistband, the upper end of each reaming rod is welded in the corresponding welding groove, and the section of each reaming rod is of a square structure; a plurality of reaming strips are arranged on the outer wall of the waistband, an alloy block group is arranged between the adjacent reaming strips, and each alloy block group comprises a plurality of alloy blocks arranged along the reaming strips; the alloy blocks are uniformly arranged on the outer walls of the cross rod and the reaming rods.

Description

technical field [0001] The invention relates to the field of geological exploration equipment, in particular to a hole reamer. Background technique [0002] In the prior art, the reamer has the following disadvantages: the reaming rod of the reamer has a cylindrical structure, and its friction with the soil gravel is small, and the cutting force for the soil gravel is insufficient, and there are large pieces of soil Gravel is easily stuck between the belt and the cross bar, causing damage to the reamer and other components, resulting in low feeding efficiency; the welding area between the reaming rod and the inner wall of the belt is small, and the welding strength is not high; the belt only plays a supporting role. Without the reaming function, the reaming efficiency is low. Contents of the invention [0003] Aiming at the shortcomings of the above-mentioned prior art, the applicant conducts research and improvement, and provides a belt reaming type hole reamer, which ha...

AI Technical Summary

Problems solved by technology

[0002] In the prior art, the reamer has the following disadvantages: the reaming rod of the reamer is a cylindrical structure, which has less friction with the soil and gravel, and the cutting force on the soil and gravel is insufficient, and there are larger pieces of soil The gravel is easily stuck between the belt and the cross bar, causing damage to the reamer and other components, resulting in low feeding efficiency; the welding area between the reaming rod and the inner wall of the belt is small, and the welding strength is not high; the belt only plays a supporting role. No reaming function, low reaming efficiency

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